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2015 AUDI A6

3.0L Supercharged V6•AWD•AUTOMATIC•gas•supercharged
4 active safety recalls on this vehicle — view recalls
Repairs0Labor991Torque6374Fluid15DTC1824Battery0Maintenance0Recalls4
P2138critical severityPowertrain

Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation

on 2015 Audi A6 3.0L Supercharged V6 · AWD

What this code means

The dual accelerator pedal position sensors report conflicting values.

Symptoms

  • Limp mode
  • No throttle response
  • Check engine light
  • Engine at idle only

Common causes

  • Failed APP sensor
  • Corroded pedal connector
  • Wiring fault
  • 5V reference issue

Diagnostic steps

  1. Check APP sensor D and E voltages
  2. Verify 5V reference
  3. Inspect pedal connector

Repair notes

Replace accelerator pedal assembly. Check shared 5V reference circuit.

Other Powertrain codes on this vehicle

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